New Holland 3771 – ENGINE: Oxidation Catalyst: Up and Downstream Temperature Sensors Exchanged

The fault code indicates that the upstream and downstream temperature sensors in the oxidation catalyst have been exchanged. This may lead to incorrect temperature readings and improper monitoring of the catalyst's performance.

1. 1

   Physical placement of the upstream and downstream temperature sensors in the oxidation catalyst

2. 2

   Wiring connections to the temperature sensors

3. 3

   Sensor identification markings to confirm correct placement

1. 1

   Verify sensor placement

   Ensure that the upstream temperature sensor is installed in the correct position and the downstream temperature sensor is in its correct position according to the manufacturer's specifications.

2. 2

   Check sensor identification

   Confirm that the sensors are correctly labeled and match the intended positions in the oxidation catalyst.

3. 3

   Reinstall sensors if necessary

   If the sensors are found to be incorrectly placed, remove and reinstall them in their correct positions.